AMERICAN DOG HERO of the year 2011 This yellow Labrador guide dog, Roselle, was with Michael Hingson, her blind companion, on the 78th floor of the World Trade Center North Tower on September 11, 2001. Roselle was able to lead Michael down the flights of stairs. Once on the ground, Roselle was able to lead not only Michael to safety but many of his sighted coworkers who were blinded by the dust cloud.